Galvanic battery.



' PATENTED MAR. 17,- 1903.

M. M. BAIR. GALVANIG BATTERY. APPLIUATIOK FILED MAR. 21, 1901.

2 SHEETS-SHEET 1.

10 MODEL.

No. 722,662. PATBNTED MAR. 17, 1903,

' M. M. BAIR.

GALVANIG BATTERY.

APPLIUATION rum) MAR. 21-, 1901.

HO MODEL. 2 SHEETS-SHEET z.

UNITED STATES PATENT OFFICE.

MICHAEL MARTIN BAIR, OF LEVALLOlS-PERRET, FRANCE, ASSIGNOR TO SOCIETEANONYME LE CARBONE, OF LEVALLOIS-PERRET, FRANCE.

BATTERY.

SPECIFICATION forming part of Letters Patent No. 722,662, dated March1'7, 1903.

Application filed March 21, 1901.

To all whovt it may concern:

Be it known that I, MICHAEL MARTIN BAIR, carbon-manufacturer, a subjectof the German Emperor,'residin g at 33 Rue de Lorraine,Levallois-Perret, near Paris, in the Republic of France, have inventedcertain new and useful Improvements Relating to Galvanic Cells orBatteries, of which the following is a specification.

This invention relates to galvanic cells or batteries of the kind thatare hermetically sealed and intended for use with motor-vehicles.

In my application for United States patent filed concurrently herewith Iset forth a cell so constructed that it could be readily opened and theconstituent elements taken apart and after recharging could be equallyreadily put together and closed again.

It is the chief object of my present invention to devise improved meanswhereby the aforesaid object can be attained, the said means beingparticularly applicable to cells of the Leclanch kind.

According to my invention I provide the cell with. a detachable lid orcover to which the electrodes and the porous chamber may or may not beattached, the said lid or cover being so arranged that it can be securedto the outer vessel or to the outer vessel and the porous chamber bymeans of resilient clamping-frames, so as to maintain the lidhermetically in place, and yet permit of its ready detachment.

In order that my said invention may be clearly understood and readilycarried into eflect, I will proceed to describe the same more fully withreference to the accompanying drawings, in which- Figure 1 is asectional elevation, and Fig. 2 is a plan, of a Leclanch cellconstructed according to my invention. Fig. 3 is a plan of the outervessel. Fig. 4 is an elevation, partly in section, of a modifiedconstruction.

In all the figures like letters of reference indicate similar parts.

A is the lid. B and C are the electrodes. D is the porous chamber. E,the outer vessel, and F the resilient frame or clamp.

Referring more particularly to Figs. 1 to 3,

in which the electrodes and the porous cham- Serial No. 52,200. (Nomodel.)

her are shown connected to the lid or cover, the frame F is formed ofstout wire coiled upon itself at ff, so as to render said frameresilient. The said frame is formed with loops f f, adapted to engagewith projections 6 e on the outer vessel. 3

The lid or cover A is placed upon the outer vessel of the cell andsecured in position by passing the loop f over the projection e, andthereafter passing the loop f over the projection e.

The extremities or loop portions of the frame tend to rise by reason ofthe elasticity or resiliency of the frame, but are held down by theirengagement with the said projections. They thus tend to prod uce on thelid or cover A at its various points of contact with the frame aconsiderable pressure, which insures a tight joint between the cell andthe cover. The said joint is rendered further secure by means of therubber or other washer G.

The arrangement of fasteningillustrated in Fig. at is similar to thatabove described, but the porous chamber is not in this instance attachedto the lid or cover. The said cover is provided with an opening intowhich the upper part of the porous chamber or the electrode thereinfits. Between'a shoulder d on the upper part of said porous chamber andthe said cover is placed a packing-ring or Washer H.

The herein-described method of hermetically closing galvanic cells isapplicable to all kinds or types of cells,'and I do not desire toconfine myself to the Leclanch forms above described nor to thedimensions and accessory arrangements set forth, as obviously these maybe altered and modified to suit different constructions of cells.

What I claim, and desire to secure by Letters Patent of the UnitedStates, is

1. In a galvanic cell, the combinationwith the cover therefor having acentral aperture for the carbon electrode, a resilient wire frame forholding down said cover and connections on the cell for said frame toengage with, of a number of coils on said frame disposed about saidaperture and adapted to distribute the pressure of the frame evenly overthe cover, substantially as described.

2. In a galvanic cell, the combination with a hermetic lid provided withelectrodes passing through its central portion, of a resilient wireframe having loops on its opposite ends adapted to engage withprojections on the cell so as to serve as hinge and clasp respectively,and having moreover a number. of coils disposed around the said centralportion of the lid, said coils being adapted to distribute the pressureof the frame over the surface of the lid without interfering with theelectrodes, substantially as described.

3. In a closed galvanic cell, the combination with a resilient wireframe adapted to cooperate with connections on the cell so as tomaintain hermetic closure, of a lid having its MICHAEL MARTIN BAIR.

Witnesses:

EDWARD P. MACLEAN, ENRIQUE BAER.

